Bletchleyite
Veteran Member
That would be a bad idea in transport and environment terms, exactly because it makes car use cheaper on a marginal basis once someone has paid out the lump sum. The rational choice to do so is exacerbated by the emotional "I've paid out all this money for this service, might as well make the most of it" factor.
Therefore, ideally, these schemes should keep any membership fee to a minimal level to pay for the admin of having a particular person in the scheme, and load all the costs onto useage. I recognise that a commercial provider may not see it that way.
Then people won't switch.
There's a good chance they will replace taxis, though, and people will use them like they presently do taxis, or possibly for slightly longer journeys if they are a bit cheaper (so back to only threatening branch lines and local bus services).